I forgot about those. I have one in 12/7X57R that is exceedingly accurate. It takes the same mounts as air rifles and has two triggers, so it is fast to select which barrel you wish. Although crude looking, the metal-to-metal fit is very good, and it works...every time. I got it on Gunbroker a few years ago for $245.00 + shipping & Brady. In my opinion, they are worth the $479.00 price if you need a handy "truck gun".
That Bernardelli combo is one I covet.